:root {
  --accent: #ffc400;
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #111827;
  --muted: #6f7480;
  --line: #e7e8ec;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #18181b;
    --card: #232428;
    --text: #f2f2f3;
    --muted: #9a9da3;
    --line: #35363b;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 28px 18px 60px;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.doc {
  max-width: 680px;
  margin: 0 auto;
  padding: 24px 22px 30px;
  background: var(--card);
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.doc-updated {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 13px;
}

h1 {
  margin: 0 0 18px;
  font-size: 21px;
  line-height: 1.3;
}

h2 {
  margin: 28px 0 8px;
  font-size: 16px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

h2:first-of-type {
  border-top: 0;
  padding-top: 0;
}

p {
  margin: 8px 0;
}

ul, ol {
  margin: 8px 0;
  padding-left: 22px;
}

li {
  margin: 4px 0;
}

a {
  color: var(--accent);
}

.placeholder {
  color: var(--muted);
  font-style: italic;
}

.doc-footer {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}